Azo dye.



ill'l lll NED @Tllefllliilil E lllli lh lilllilll ."PAUL JULIUS AND CARL IMIlIERI-IEISER, OF LUD'WIGSHAFEN-ON-TI'IE-RHINE, GEE- MANY, ASSIGNDRS T0 BADISCHE ANILIN 6r, SODA Ii'ABIiLI'hI, OI" LUDll 1C-l'Sl*[AFENOIil- THE-RHINE, GERMANY, A CDRPORATION.

Horizoni digent, 553, l 913.3.

hill) DYE.

l ,.l} i?'3,@@41l, Specification oi Letters 'lnlen't.

lrl'o Brewing. Application filed May 22, 1913.

Serial No. 770,330.

To 0:12 whom it may concern Be it known that we, PAUL Jones and Conn lmmnnnnisnn, citizens, respectively, 01": the .Austrollnngarian Empire and of the German Empire, residing at Ludwigshefen ondhe-Rhine, Germany, have invented new and useful Improvements in Ann Dyes, of which the following is a specification.

We have discovered new coloring matters which can be produced b'v combining dinzotized amino-phonol-nlkyleihers with benzoyl-1.8-amino-nephlhol-4i.6--disolfonic acid and which are very valuable in the :Eorm of their lakes. Our new coloring matters, on gentle reduction with s'ionnous chlorid and hydrochloric acid, give rise to an amino-- phenol-alkyhciher and an amino compound of benzoyl--l.8 amino naphthol 4.6 disulfonic acid. They consist generally of red to violet powders which yield blooded solutions in water and in the form of their alkaline earth lakes possess blue-red shades.

The followin example will serve to illusti-ate further t e nature of our invention, which, however, is not confined ito this or;- emple. The parts are by weight. Dinzotize 1523 parts of orthonnisidin (which may be done in the usual manner) and run the solution, while stirring, into n solution of do? parts of the disodium salt of benzoyl- 1.8-amino-naiphthol4.6-disulfonic acid, to which an excess of sodium carbonate has been added. When the combination is com-- plete, heat the mass to about 80 (1., add 'connnon salt, iii? necessary, and then filter oil and press and dry the coloring matter. lie is e violet powder which dissolves in wator, the solution being brilliant blue-red. ln ihe form of its alkaline earth lakes it possesses brilliant blue-red shades. On gentle reduction with stannons chlorid and hydro ohloric acid it gives rise to oriho-anisidin and on oniino compound of bonzoyl-1.ll-- amino-n:iphthol-iddisulfonic acid.

The conversion into lakes can be eil'ected in any manner usually employed for converting coloring matters into hikes and can be carried out, if desired, without any intermediate isolation of the coloring mutter.

l l'ow what we claim is 1, The new nzo coloring matters which can be produced by combining diezotized nmiinc-phenol nlkyl-ethers with benzoyblfion]ino-nnphihol-d.l3-disulfonic acid, which coloring matters consist when dry of red to violet powders which yield blue-red solo.- lvions in water and in the form oi" their olknlino eorih lakes possess brilliant; blue-red shades, and which upon gentle reduction with stannons chlorid and hydrochloric acid give rise to on amino phenol-nlkyLether and. an amino derivative oi henzojd-LS-ominonnphthol-el;.G-disulfonic acid.

2. The now am coloring matter which can be produced by combining cliozotized orthoenisidin with benzoyl'l.8nn1ino-nnphthollfi-disnlfonic acid, which consists when dry of a violet' powder which yields s. brilliant blue-red solniion in water and in the form of its alkaline earth lakes possesses brilliant blue-red shades, and whic 1 upon gentle reduolion with stnnnons chlorid and hydro chloric acid gives rise to ortho-anmdin and an amino derivative of benzoyl-LB-mninw imphtl'ml-dfi-disnlfonic ncid.

In testimony whereof we have hereunto set our hands in the presence of two subscribing; witnesses.

PAUL J ULIUS. CARL lMMERl-IEISER.

Witnesses J. Arno. LLOYD, J isle m1 lnnlnrsn. 

